Moore's Law famously predicted the rapid rate of increase in integrated circuit gate density. As gate sizes are falling into the low single digit nanometre range however, physical constraints on future development are likely. Quantum computing promises to deliver orders of magnitude better performance than conventional binary devices, and IBM has launched a new quantum processor called Eagle, which promises to approach quantum advantage, the point at which quantum computers clearly outperform their conventional counterparts.Nuclear energy startup TerraPower and GE Hitachi Energy Systems have chosen the site for the first demonstration reactor of Natrium liquid sodium fission technology. The pilot plant will be built in western Wyoming on the site of a coal plant nearing decommissioning. The Natrium concept uses a simplified reactor design that uses substantially less material and low enrichment uranium fuel to produce power more cost-effectively than current pressurized water designs. A prominent investor is Bill Gates, and the pilot plant should be ready in seven years.Access all episodes of This Week in Engineering on engineering.com TV along with all of our other series.